US9191690B2 - Apparatus and method for displaying moving images in a motor vehicle, and motor vehicle - Google Patents

Apparatus and method for displaying moving images in a motor vehicle, and motor vehicle Download PDF

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Publication number
US9191690B2
US9191690B2 US14/346,628 US201214346628A US9191690B2 US 9191690 B2 US9191690 B2 US 9191690B2 US 201214346628 A US201214346628 A US 201214346628A US 9191690 B2 US9191690 B2 US 9191690B2
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Prior art keywords
mode
threshold value
control unit
motor vehicle
speed
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US20140223497A1 (en
Inventor
Thomas Eireiner
Ralf Hinz
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Mercedes Benz Group AG
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Daimler AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • B60K37/06—
    • B60K2350/906—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/18—Information management
    • B60K2360/195—Blocking or enabling display functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed

Definitions

  • Exemplary embodiments of the invention relate to a device for displaying moving images in a motor vehicle, a motor vehicle and a method for displaying moving images in a motor vehicle.
  • the known “COMAND” infotainment system for the passenger vehicles made by Mercedes-Benz comprises a color display, which is arranged in the center console or alongside the instrument cluster above the center console, a market-specific TV tuner (nowadays DVB-T, DTMB, ISDB-T, for example), and a DVD player.
  • a market-specific TV tuner nowadays DVB-T, DTMB, ISDB-T, for example
  • DVD player a digital video player
  • This known infotainment system has so-called “automatic image cutout”, which causes the display of the moving images on the color display to be switched off when the driving speed exceeds 5 km/h and instead causes explanatory information to be shown on a black background in the color display, and causes the display of the moving images on the color display to be switched on again when the driving speed falls below 3 km/h.
  • automated image cutout causes the display of the moving images on the color display to be switched off when the driving speed exceeds 5 km/h and instead causes explanatory information to be shown on a black background in the color display, and causes the display of the moving images on the color display to be switched on again when the driving speed falls below 3 km/h.
  • a disadvantage of this known infotainment system is that the display of the information on a black background is very dark and the abrupt change from the normal display or playback of the moving images to this dark display, and vice versa, may distract or bother the driver, such that he may often just attempt, in a traffic jam or slow-moving traffic, to adapt his driving profile to the algorithm of the automatic image cutout. This represents a driver distraction, whereby the risk of accident increases.
  • Exemplary embodiments of the invention are directed to further reducing the risks caused by driver distraction.
  • a device for displaying moving images in a motor vehicle comprises
  • the lower refresh rate leads to a lower level of driver distraction than the abrupt change to the dark image in the known “COMAND” infotainment system, and to an attractive depiction or display on the screen.
  • the moving image source can, according to need, be connected to the screen in any manner, for example directly or indirectly, in particular via the control unit.
  • the playback parameters that are used for the display and playback of the moving images comprise, for example, the refresh rate, the image resolution, color depth and brightness.
  • the control unit can, according to need, be formed in any way, for example in such a way that it activates or can activate the screen in at least one further mode and selects each of these further modes depending on at least one further condition, which in particular comprises a further threshold value for speed and this further threshold value being exceeded.
  • provision can be made, for example, for the control unit to activate or be able to activate the screen in a third mode, wherein information on a dark, in particular black, screen is displayed, and selects the third mode if the speed is greater than or equal to a third threshold value that is greater than or equal to the second threshold value.
  • An exemplary system can also include
  • An “isotone” function also means a “monotonically increasing” function. Since the control unit changes or can change the first and/or the second threshold value according to an isotone function of the distance, it enlarges the respective threshold value or leaves it unchanged if the distance detected by the distance sensor and transmitted to the control unit increases, and it reduces the respective threshold value or leaves it unchanged if the distance detected by the distance sensor and transmitted to the control unit decreases. This isotone change can take place, according to need, in any manner, for example in stages with at least one stage, or continuously, in particular in proportion with, disproportionately lower or disproportionately higher than the distance.
  • An exemplary system can further include
  • an “antitone” function also means a “monotonically decreasing” function. Since the control unit changes or can change the first and/or the second threshold value according to an antitone function of the relative speed, it reduces the respective threshold value or leaves it unchanged if the relative speed detected by the relative speed sensor and transmitted to the control unit increases, and it enlarges the respective threshold value or leaves it unchanged if the relative speed detected by the relative speed sensor and transmitted to the control unit decreases.
  • This antitone change can take place, according to need, in any manner, for example in stages with at least one stage, or continuously, in particular in proportion with, disproportionately lower or disproportionately higher than the relative speed.
  • the invention is directed to a motor vehicle comprising at least one of the exemplary devices according to the invention.
  • Each exemplary motor vehicle according to the invention preferably further comprises at least one speed sensor, which is connected to the control unit and detects or is able to detect the speed of the motor vehicle and transmits or is able to transmit it to the control unit.
  • Each exemplary motor vehicle according to the invention preferably further comprises
  • the distance sensor can, according to need, be formed in any way and can function, for example, with laser light and/or LIDAR and/or RADAR and/or ultrasonics.
  • Each exemplary motor vehicle according to the invention preferably further comprises
  • the relative speed sensor can, according to need, be formed in any way and can function, for example, with laser light and/or LIDAR and/or RADAR and/or ultrasonics.
  • Each exemplary device and each exemplary motor vehicle according to the invention preferably further comprises at least one moving image source for the moving images, which are connected to the screen, for example directly or indirectly, in particular via the control unit, and/or at least one slot for the connection of a moving image source, which is connected to the screen, for example directly or indirectly, preferably via the control unit.
  • the moving image source can, according to need, be formed in any manner, for example as an analogue and/or digital TV tuner, DVD player, Blu-ray player, external hard drive, flash memory card or USB stick.
  • the threshold values can be selected in any way according to need.
  • the first threshold value can be 3 km/h and the second threshold value can be 5 km/h.
  • control unit Since the control unit only switches to the second mode when the second threshold value has been reached or exceeded, and only switches to the first mode when the first threshold value is fallen below, it selects the modes according to the type of hysteresis.
  • the control unit Since the control unit only functions in the second mode or switches from the first mode to the second mode after the expiry of this time span, the second mode is activated with a delay that corresponds to the minimum value. This enables a smoother journey in traffic jams and slow-moving traffic.
  • the minimum value can, according to need, be selected in any way and is, for example, 10 s.
  • control unit changes or can change the refresh rate according to an antitone function of the speed and/or time, it reduces the respective threshold value or leaves it unchanged if the speed and/or time detected by the speed sensor and transmitted to the control unit increases, and it enlarges the refresh rate or leaves it unchanged if the speed detected by the speed sensor and transmitted to the control unit decreases.
  • This antitone change can take place, according to need, in any manner, for example in stages with at least one stage, or continuously, in particular in proportion with, disproportionately lower or disproportionately higher than the speed and/or time.
  • the invention is directed to a method for displaying moving images in a motor vehicle, in particular in one of the proposed motor vehicles and/or with the aid of one of the proposed devices, wherein
  • the moving images are only displayed in the second mode if the time span, during which the speed is greater than or equal to the second threshold value, is greater than a predetermined minimum value.
  • the refresh rate in the second mode is 0 Hz.
  • the frame of the moving images that is currently being displayed or was most recently displayed can be displayed as still or frozen image.
  • the proposed motor vehicles and the proposed methods provision can be made for the image resolution and/or the color depth and/or the brightness to be smaller in the second mode than in the first mode.
  • the reduction in image resolution can, for example, be carried out by reducing the pixel density in the form of pixelization.
  • the reduction in color depth can, for example, lead to a depiction of the moving images in greyscale or in black and white.
  • the reduction in brightness can, for example, lead to a darker depiction of the moving images.
  • the embodiments of the inventive devices apply accordingly and analogously for the inventive motor vehicles and the inventive methods.
  • the embodiments of the inventive motor vehicles in particular individual features of the inventive motor vehicles, apply accordingly and analogously for the inventive devices and the inventive methods.
  • the embodiments of the inventive methods in particular individual features of the inventive methods, apply accordingly and analogously for the inventive devices and the inventive motor vehicles.
  • FIG. 1 a device for displaying moving images in a first embodiment
  • FIG. 2 a section of a motor vehicle in a preferred embodiment, having a device for displaying moving images in a second embodiment.
  • FIG. 1 schematically illustrates a first embodiment of a device 10 according to the invention for displaying moving images in a moving image.
  • This device 10 comprises a screen 11 for displaying the moving images and a control unit 12 for the screen 11 .
  • a moving image source 13 for the moving images can be connected to the screen 11 , and a speed sensor 14 can be connected to the control unit 12 , which detects the speed of the motor vehicle, in which the device 10 is installed, and transmits it to the control unit 12 .
  • such a moving image source 13 is connected to the control unit 12 and thus to the screen 11 indirectly via the control unit 12 .
  • the moving image source 13 is formed here as a DVB-T tuner. It is further shown in FIG. 1 that such a speed sensor 14 is connected to the control unit 12 .
  • the control unit 12 is formed in such a way that it can activate the screen 11 in a first mode, in which the moving images are displayed with normal playback parameters, and in a second mode, that it selects the first mode if the speed transmitted by the speed sensor 14 is less than a first threshold value, and that it selects the second mode if this speed is greater than or equal to a second threshold value.
  • the second threshold value is equal to the first threshold value, which is 3 km/h
  • the refresh rate, with which the moving images are played back on the screen 11 is 0 Hz in the second mode, and is thus smaller than in the first mode, in which the moving images are played back with a normal refresh rate of 60 Hz.
  • the individual image from the moving images which is currently being displayed on the screen 11 at the point in time at which the control unit 12 is switched to the second mode, is displayed on the screen as a still image, i.e. with the refresh rate of 0 Hz.
  • FIG. 2 schematically illustrates a preferred embodiment of a motor vehicle 15 according to the invention, which comprises a device 10 according to the invention in a second embodiment.
  • This second embodiment resembles the first embodiment, such that only the differences are illustrated in greater detail below.
  • a distance sensor 16 and a relative speed sensor 17 can be connected to the control unit 12 .
  • the motor vehicle 15 further comprises a moving image source 13 , which in this case has a DVB-T tuner and a DVD player, a speed sensor 14 , a distance sensor 16 and a relative speed sensor 17 .
  • the second threshold value is equal to 5 km/h and is thus greater than the first threshold value.
  • the control unit 12 is formed in such a way that it remains in the first mode if the first threshold value is reached or exceeded, that it switches from the first mode to the second mode if the second threshold value is reached or exceeded, that it remains in the second mode if the second threshold value is fallen below, and that it switches from the second mode to the first mode if the first threshold value is fallen below.
  • control unit 12 is furthermore formed in such a way that, in the second mode, it reduces the refresh rate to 75% of the normal refresh rate if the speed is a maximum of 10 km/h greater than the second threshold value, to 50% of the normal refresh rate if the speed is more than 10 km/h but a maximum of 20 km/h greater than the second threshold value, to 25% of the normal refresh rate if the speed is more than 20 km/h but a maximum of 30 km/h greater than the second threshold value, and to 5% of the normal refresh rate if the speed is more than 30 km/h greater than the second threshold value.
  • the control unit thus changes the refresh rate in stages according to an antitone function of the speed.
  • the control unit 12 is moreover formed in such a way that it increases the first threshold value by 1 km/h and the second threshold value by 2 km/h if the distance is greater than 5 m and a maximum of 7 m, increases the first threshold value by 2 km/h and the second threshold value by 4 km/h if the distance is greater than 7 m and a maximum of 10 m, and increases the first threshold value by 3 km/h and the second threshold value by 6 km/h if the distance is greater than 10 m.
  • the control unit 12 thus changes the first and the second threshold value in stages according to an isotone function of the distance.
  • the control unit 12 is additionally formed in such a way that it increases the first and the second threshold values by 5 km/h if the relative speed is negative, i.e. the motor vehicle 15 is slower than the vehicle travelling in front, does not change the first and the second threshold values if the relative speed is at least 0 km/h but maximum 2 km/h, reduces the first and the second threshold values by 1 km/h if the relative speed is greater than 2 km/h and maximum 4 km/h, and reduces the first and the second threshold values by 2 km/h if the relative speed is greater than 4 km/h.
  • the control unit 12 thus changes the first and the second threshold value in stages according to an antitone function of the relative speed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
US14/346,628 2011-09-22 2012-09-18 Apparatus and method for displaying moving images in a motor vehicle, and motor vehicle Active US9191690B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102011114059.3A DE102011114059B4 (de) 2011-09-22 2011-09-22 Vorrichtung zur Anzeige von Bewegtbildern in einem Kraftfahrzeug sowie Kraftfahrzeug
DE102011114059.3 2011-09-22
DE102011114059 2011-09-22
PCT/EP2012/003892 WO2013041209A2 (de) 2011-09-22 2012-09-18 Vorrichtung und verfahren zur anzeige von bewegtbildern in einem kraftfahrzeug sowie kraftfahrzeug

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US20140223497A1 US20140223497A1 (en) 2014-08-07
US9191690B2 true US9191690B2 (en) 2015-11-17

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US (1) US9191690B2 (de)
EP (1) EP2758267B1 (de)
CN (1) CN103813926B (de)
DE (1) DE102011114059B4 (de)
WO (1) WO2013041209A2 (de)

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CN107776487B (zh) 2016-08-24 2021-01-15 京东方科技集团股份有限公司 汽车用辅助显示系统及显示方法、汽车
CN107139724A (zh) * 2017-03-31 2017-09-08 斑马信息科技有限公司 用于车辆的车载屏幕动态显示方法及其车载中控系统
JP6940361B2 (ja) * 2017-10-10 2021-09-29 マクセル株式会社 情報表示装置

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WO2013041209A3 (de) 2013-05-23
US20140223497A1 (en) 2014-08-07
WO2013041209A2 (de) 2013-03-28
DE102011114059A1 (de) 2013-03-28
EP2758267A2 (de) 2014-07-30
CN103813926B (zh) 2016-07-13
DE102011114059B4 (de) 2020-06-25
EP2758267B1 (de) 2019-11-06
CN103813926A (zh) 2014-05-21

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